7

我创建了一个 bean 类并在我的控制器中使用它,但它似乎不起作用。即即使我输入了一个无效的年龄,result.hasErrors仍然是错误的。

豆类:

public class User{
    @Min(13)
    private int age;
    private String name;

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getName(){
            return name;
    }

    public void setName(String name){
            this.name = name;
    }   
}

控制器片段:

@ActionMapping(params = "myAction=validateUser")
    public void validateUser(ActionRequest request, ActionResponse response, ModelMap model, @ModelAttribute("user") @Valid User user, BindingResult result ){      

        if(result.hasErrors()){
            for(ObjectError oe : result.getAllErrors()){
                System.out.println(oe.getDefaultMessage());
            }
        } else{
            //code
        }
    }

JSP:

<form:form action="${registerUser}" method="post" commandName="user">
    <b>User</b> 
    <form:input path="age"/>
    <form:input path="name"/>
    <input type="submit" value="register"/>
</form:form>

编辑:我的 userRegistration-portlet.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/util
        http://www.springframework.org/schema/util/spring-util-3.0.xsd
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
        http://www.springframework.org/schema/mvc
        ">

    <mvc:annotation-driven /> 

    <import resource="spring-hibernate.xml"/>

    <context:component-scan base-package="comjohndoe.dao" />
    <context:component-scan base-package="comjohndoe.model" />
    <context:component-scan base-package="comjohndoe.service" />
    <context:component-scan base-package="comjohndoe.util" />
    <context:component-scan base-package="comjohndoecontroller" />

    <bean class="org.springframework.web.portlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>

    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>

是 mvc:spring-validation 行给了我:cvc-complex-type.2.4.c the matching wildcard is strict, but no declaration can be found for the element mvc:annotation-driven.错误。

4

4 回答 4

8

我有完全相同的问题。我阅读了https://jira.springframework.org/browse/SPR-6817并通过添加到我的配置来解决问题:

<mvc:annotation-driven validator="validator" />

<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />

<bean id="annotationMethodHandlerAdapter" class="org.springframework.web.portlet.mvc.annotation.AnnotationMethodHandlerAdapter">
    <property name="webBindingInitializer">
        <bean id="configurableWebBindingInitializer" class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
            <property name="validator">
                <ref bean="validator"/>
            </property>
        </bean>
    </property>
</bean>

您还需要在您的项目中有一个 JSR-303 验证器才能使用它为此我使用了 Hibernate 验证器:http ://www.hibernate.org/subprojects/validator.html

于 2010-11-26T10:16:01.127 回答
4

您需要<mvc:annotation-driven />启用 jsr-303 验证。如果您出于某种原因不想使用它,或者如果在某些时候它开始产生问题(就像它对我所做的那样),请查看这个问题

更新:在schemaLocationmvc 条目中应该包含这两个

http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
于 2010-11-26T08:34:45.123 回答
2

您需要执行以下操作,这就是我在spring portlet mvc项目中解决的方法。

  1. 添加mvc:annotation-driven到您的 applicationContext.xml

  2. 在您的控制器中添加以下代码:

    @Autowired private LocalValidatorFactoryBean validator;

    @InitBinder public void initBinder(WebDataBinder binder) { binder.setValidator(validator); }

于 2014-12-29T21:45:59.767 回答
0

我认为原因是ServletRequestDataBinder(扩展 DataBinder)没有org.springframework.validation.Validator实例,所以它不验证任何东西(要验证 @Valid 带注释的 bean,你必须有 javax.validation.Validator 实例)。

org.springframework.validation.DataBinder

    public void validate() {
            Validator validator = getValidator();
            if (validator != null) {
                validator.validate(getTarget(), getBindingResult());
            }
        }

@InitBinder您可以在带注释的方法中设置 Validator 实例:-

@InitBinder
    public void initBinder(WebDataBinder binder) {
        binder.setValidator(new MyValidator());
    }

Yo 还可以在WebBindingInitializer中设置验证器实例。

标准绑定初始化器

   public class StandardBindingInitializer implements WebBindingInitializer {
        @Autowired
        private LocalValidatorFactoryBean validator;
        public void setValidatorFactory(LocalValidatorFactoryBean validator) {
            this.validator = validator;
        }

        @Override
        public void initBinder(WebDataBinder binder, WebRequest request) {
            binder.setValidator(validator);
    }
}

要创建 LocalValidatorFactoryBean 的实例,请使用mvc:annotation-driven将 LocalValidatorFactoryBean 设置为 bean

于 2010-11-26T09:24:04.577 回答